spec: refine the wording about variables in type switches

R=golang-dev, rsc
CC=golang-dev
https://golang.org/cl/5686064
This commit is contained in:
Rob Pike 2012-02-22 16:25:55 +11:00
parent d1e1367cad
commit 818e3cdb09

View file

@ -1,6 +1,6 @@
<!--{
"Title": "The Go Programming Language Specification",
"Subtitle": "Version of February 21, 2012"
"Subtitle": "Version of February 22, 2012"
}-->
<!--
@ -4023,7 +4023,8 @@ TypeList = Type { "," Type } .
<p>
The TypeSwitchGuard may include a
<a href="#Short_variable_declarations">short variable declaration</a>.
When that form is used, the variable is declared in each clause.
When that form is used, the variable is declared at the beginning of
the <a href="#Blocks">implicit block</a> in each clause.
In clauses with a case listing exactly one type, the variable
has that type; otherwise, the variable has the type of the expression
in the TypeSwitchGuard.